public static string GetContentTypeByImageFormat(ImageFormat format)
{
string ctype = "image/x-unknown";
if (format.Equals(ImageFormat.Gif))
{
ctype = "image/gif";
}
else if (format.Equals(ImageFormat.Jpeg))
{
ctype = "image/jpeg";
}
else if (format.Equals(ImageFormat.Png))
{
ctype = "image/png";
}
else if (format.Equals(ImageFormat.Bmp) || format.Equals(ImageFormat.MemoryBmp))
{
ctype = "image/bmp";
}
else if (format.Equals(ImageFormat.Icon))
{
ctype = "image/x-icon";
}
else if (format.Equals(ImageFormat.Tiff))
{
ctype = "image/tiff";
}
return(ctype);
}
/// <summary>
/// Gets the image type representation for a mimetype
/// </summary>
/// <param name="format">Content mimetype</param>
/// <returns>Image type</returns>
private ImagePartType GetImagePartType(ImageFormat format)
{
if (format.Equals(ImageFormat.Jpeg))
{
return(ImagePartType.Jpeg);
}
else if (format.Equals(ImageFormat.Emf))
{
return(ImagePartType.Emf);
}
else if (format.Equals(ImageFormat.Gif))
{
return(ImagePartType.Gif);
}
else if (format.Equals(ImageFormat.Icon))
{
return(ImagePartType.Icon);
}
else if (format.Equals(ImageFormat.Png))
{
return(ImagePartType.Png);
}
else if (format.Equals(ImageFormat.Tiff))
{
return(ImagePartType.Tiff);
}
else if (format.Equals(ImageFormat.Wmf))
{
return(ImagePartType.Wmf);
}
else
{
return(ImagePartType.Bmp);
}
}
/// <summary>
///
/// </summary>
/// <param name="imageFormat"></param>
/// <returns></returns>
private string GetContentType(ImageFormat imageFormat)
{
if (imageFormat.Equals(ImageFormat.Gif))
{
return("image/gif");
}
else if (imageFormat.Equals(ImageFormat.Jpeg))
{
return("image/jpeg");
}
else if (imageFormat.Equals(ImageFormat.Png))
{
return("image/png");
}
else if (imageFormat.Equals(ImageFormat.Bmp))
{
return("image/bmp");
}
else if (imageFormat.Equals(ImageFormat.Tiff))
{
return("image/tiff");
}
else if (imageFormat.Equals(ImageFormat.Icon))
{
return("image/vnd.microsoft.icon");
}
else if (imageFormat.Equals(ImageFormat.Wmf))
{
return("image/wmf");
}
else
{
return(string.Empty);
}
}
public static string GetImgFormatName(ImageFormat format)
{
if (format.Equals(ImageFormat.Bmp))
{
return("bmp");
}
if (format.Equals(ImageFormat.Emf))
{
return("emf");
}
if (format.Equals(ImageFormat.Exif))
{
return("exif");
}
if (format.Equals(ImageFormat.Gif))
{
return("gif");
}
if (format.Equals(ImageFormat.Icon))
{
return("icon");
}
if (format.Equals(ImageFormat.Jpeg))
{
return("jpeg");
}
if (format.Equals(ImageFormat.MemoryBmp))
{
return("MemoryBMP");
}
if (format.Equals(ImageFormat.Png))
{
return("png");
}
if (format.Equals(ImageFormat.Tiff))
{
return("tiff");
}
if (format.Equals(ImageFormat.Wmf))
{
return("wmf");
}
return("jpg");
}
/// <summary>
/// Загрузить изображение из его данных.
/// </summary>
private void LoadImage()
{
if (Image == null || Image.Data == null)
{
source = null;
}
else if (IsSvg)
{
using (MemoryStream memStream = new MemoryStream(Image.Data))
{
SvgDocument svgDocument = SvgDocument.Open <SvgDocument>(memStream);
source = svgDocument.Draw();
DataSize = (int)memStream.Length;
}
ImageSize = new Size(source.Width, source.Height);
Format = "Svg";
}
else
{
// using не используется, т.к. поток memStream должен существовать одновременно с изображением
MemoryStream memStream = new MemoryStream(Image.Data);
source = System.Drawing.Image.FromStream(memStream);
DataSize = (int)memStream.Length;
ImageSize = new Size(source.Width, source.Height);
ImageFormat imageFormat = source.RawFormat;
if (imageFormat.Equals(ImageFormat.Gif))
{
Format = "Gif";
}
else if (imageFormat.Equals(ImageFormat.Jpeg))
{
Format = "Jpeg";
}
else if (imageFormat.Equals(ImageFormat.Png))
{
Format = "Png";
}
else
{
Format = "";
}
}
}
internal static string GetImageMimeType(ImageFormat format)
{
string mimeType = "image/x-unknown";
if (format.Equals(ImageFormat.Gif))
{
mimeType = "image/gif";
}
else if (format.Equals(ImageFormat.Jpeg))
{
mimeType = "image/jpeg";
}
else if (format.Equals(ImageFormat.Png))
{
mimeType = "image/png";
}
else if (format.Equals(ImageFormat.Bmp) || format.Equals(ImageFormat.MemoryBmp))
{
mimeType = "image/bmp";
}
else if (format.Equals(ImageFormat.Tiff))
{
mimeType = "image/tiff";
}
else if (format.Equals(ImageFormat.Icon))
{
mimeType = "image/x-icon";
}
return mimeType;
}
/// <summary>
/// Based on the raw format of the bitmap object, return the extension that best fits.
/// </summary>
/// <param name="bitmap">Bitmap object to be examined.</param>
/// <returns>Returns extention based on raw format.</returns>
public static string GetFileExtension(Bitmap bitmap)
{
if (bitmap == null)
{
throw new ArgumentNullException("bitmap cannot be null.");
}
ImageFormat Format = GetImageFormat(bitmap);
if (Format.Equals(ImageFormat.Jpeg))
{
return("jpg");
}
else if (Format.Equals(ImageFormat.Bmp))
{
return("bmp");
}
else if (Format.Equals(ImageFormat.Emf))
{
return("emf");
}
else if (Format.Equals(ImageFormat.Exif))
{
return("exf");
}
else if (Format.Equals(ImageFormat.Gif))
{
return("gif");
}
else if (Format.Equals(ImageFormat.MemoryBmp))
{
return("mbmp");
}
else if (Format.Equals(ImageFormat.Png))
{
return("png");
}
else if (Format.Equals(ImageFormat.Tiff))
{
return("tif");
}
else if (Format.Equals(ImageFormat.Wmf))
{
return("wmf");
}
else
{
return(string.Empty);
}
}
public static MediaTypeHeaderValue ConvertFromImageFormat(ImageFormat imageFormat)
{
if (imageFormat.Equals(ImageFormat.Png))
{
return(new MediaTypeHeaderValue("image/png"));
}
throw new ArgumentException("Unsupported ImageFormat.");
}
/// <summary>
/// コンストラクタ。
/// </summary>
public ScreenShot()
{
_dir = Option.Instance().SaveDirectory;
_fileFmt = Option.Instance().FileNameFormat;
_imgFmt = Option.Instance().ImageFormat;
// 拡張子を設定する。Jpegの場合は"jpg"、それ以外は名称をそのままに小文字に変換している。
_ext = _imgFmt.Equals(ImageFormat.Jpeg) ? "jpg" : _imgFmt.ToString().ToLower();
_matches = Rx.Matches(_fileFmt);
}
public void TestEquals()
{
Assert.IsTrue(BmpImageFormat.Equals(BmpImageFormat), "Bmp-Bmp");
Assert.IsTrue(EmfImageFormat.Equals(EmfImageFormat), "Emf-Emf");
Assert.IsTrue(ExifImageFormat.Equals(ExifImageFormat), "Exif-Exif");
Assert.IsTrue(GifImageFormat.Equals(GifImageFormat), "Gif-Gif");
Assert.IsTrue(TiffImageFormat.Equals(TiffImageFormat), "Tiff-Tiff");
Assert.IsTrue(PngImageFormat.Equals(PngImageFormat), "Png-Png");
Assert.IsTrue(MemoryBmpImageFormat.Equals(MemoryBmpImageFormat), "MemoryBmp-MemoryBmp");
Assert.IsTrue(IconImageFormat.Equals(IconImageFormat), "Icon-Icon");
Assert.IsTrue(JpegImageFormat.Equals(JpegImageFormat), "Jpeg-Jpeg");
Assert.IsTrue(WmfImageFormat.Equals(WmfImageFormat), "Wmf-Wmf");
Assert.IsTrue(CustomImageFormat.Equals(CustomImageFormat), "Custom-Custom");
Assert.IsFalse(BmpImageFormat.Equals(EmfImageFormat), "Bmp-Emf");
Assert.IsFalse(BmpImageFormat.Equals("Bmp"), "Bmp-String-1");
Assert.IsFalse(BmpImageFormat.Equals(BmpImageFormat.ToString()), "Bmp-String-2");
}
/// <summary>
/// Get the format of the image.
/// </summary>
/// <param name="format">Format of the image.</param>
/// <returns>
/// A string with the name of the format - compression.
/// </returns>
private static string GetEncoderInfo(ImageFormat format)
{
while (true)
{
if (format.Equals(ImageFormat.Jpeg))
{
return("JPEG");
}
else if (format.Equals(ImageFormat.Png))
{
return("PNG");
}
else if (format.Equals(ImageFormat.Bmp))
{
return("BMP");
}
}
}
public void Save(Bitmap Image, ImageFormat Format, string FileName, TextLocalizer Status, RecentViewModel Recents)
{
using (Image)
Image.WriteToClipboard(Format.Equals(ImageFormat.Png));
Status.LocalizationKey = nameof(LanguageManager.ImgSavedClipboard);
LanguageManager.Instance.LanguageChanged += L => RaisePropertyChanged(nameof(Display));
}
public static string GetExtensionFromImageFormat(ImageFormat img)
{
if (img.Equals(ImageFormat.Jpeg))
{
return("jpg");
}
else if (img.Equals(ImageFormat.Png))
{
return("png");
}
else if (img.Equals(ImageFormat.Gif))
{
return("gif");
}
else if (img.Equals(ImageFormat.Bmp))
{
return("bmp");
}
else if (img.Equals(ImageFormat.Tiff))
{
return("tif");
}
else if (img.Equals(ImageFormat.Icon))
{
return("ico");
}
else if (img.Equals(ImageFormat.Emf))
{
return("emf");
}
else if (img.Equals(ImageFormat.Wmf))
{
return("wmf");
}
else if (img.Equals(ImageFormat.Exif))
{
return("exif");
}
else if (img.Equals(ImageFormat.MemoryBmp))
{
return("bmp");
}
return("unknown");
}
// Taken from http://www.java2s.com/Code/CSharp/File-Stream/ImageFormattoExtension.htm
// And modified.
public static string ImageFormatToExtension(ImageFormat imageFormat)
{
if (imageFormat.Equals(ImageFormat.Bmp))
{
return("BMP");
}
else if (imageFormat.Equals(ImageFormat.MemoryBmp))
{
return("BMP");
}
else if (imageFormat.Equals(ImageFormat.Wmf))
{
return("EMF");
}
else if (imageFormat.Equals(ImageFormat.Wmf))
{
return("WMF");
}
else if (imageFormat.Equals(ImageFormat.Gif))
{
return("GIF");
}
else if (imageFormat.Equals(ImageFormat.Jpeg))
{
return("JPG");
}
else if (imageFormat.Equals(ImageFormat.Png))
{
return("PNG");
}
else if (imageFormat.Equals(ImageFormat.Tiff))
{
return("TIF");
}
else if (imageFormat.Equals(ImageFormat.Exif))
{
return("EXF");
}
else if (imageFormat.Equals(ImageFormat.Icon))
{
return("ICO");
}
return("");
}
public override Task ExecuteResultAsync(ActionContext context)
{
// verify properties
if (EncodedImageBytes == null)
{
if (Image == null)
{
throw new ArgumentNullException("Image");
}
}
if (ImageFormat == null)
{
throw new ArgumentNullException("ImageFormat");
}
// output
context.HttpContext.Response.Clear();
if (ImageFormat.Equals(ImageFormat.Bmp))
{
context.HttpContext.Response.ContentType = "image/bmp";
}
if (ImageFormat.Equals(ImageFormat.Gif))
{
context.HttpContext.Response.ContentType = "image/gif";
}
if (ImageFormat.Equals(ImageFormat.Icon))
{
context.HttpContext.Response.ContentType = "image/vnd.microsoft.icon";
}
if (ImageFormat.Equals(ImageFormat.Jpeg))
{
context.HttpContext.Response.ContentType = "image/jpeg";
}
if (ImageFormat.Equals(ImageFormat.Png))
{
context.HttpContext.Response.ContentType = "image/png";
}
if (ImageFormat.Equals(ImageFormat.Tiff))
{
context.HttpContext.Response.ContentType = "image/tiff";
}
if (ImageFormat.Equals(ImageFormat.Wmf))
{
context.HttpContext.Response.ContentType = "image/wmf";
}
// output stream
Stream outputStream = context.HttpContext.Response.Body;
if (EncodedImageBytes != null)
{
outputStream.WriteAsync(EncodedImageBytes, 0, EncodedImageBytes.Length);
}
return(base.ExecuteResultAsync(context));
}
static void SaveImage(Bitmap image, string targetFileName)
{
if (exportFormat.Equals(ImageFormat.Jpeg))
{
EncoderParameters encoderParams = new EncoderParameters();
encoderParams.Param[0] = new EncoderParameter(Encoder.Quality, jpegQuality);
image.Save(targetFileName, imageEncoder, encoderParams);
}
else if (exportFormat.Equals(ImageFormat.Gif))
{
OctreeQuantizer q = new OctreeQuantizer(255, 8);
image = q.Quantize(image);
image.Save(targetFileName, exportFormat);
}
else
{
image.Save(targetFileName, exportFormat);
}
}
/// <summary>
/// Convert Image to Byte[]
/// </summary>
/// <param name="image"></param>
/// <returns></returns>
public static byte[] ImageToBytes(Image image)
{
ImageFormat format = image.RawFormat;
using (MemoryStream ms = new MemoryStream())
{
if (format.Equals(ImageFormat.Jpeg))
{
EncoderParameters ep = new EncoderParameters(1);
ep.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)90);
ImageCodecInfo ici = ImageCodecInfo.GetImageEncoders().FirstOrDefault(a => a.MimeType == "image/jpeg");
image.Save(ms, ici, ep);
}
else if (format.Equals(ImageFormat.Png))
{
image.Save(ms, ImageFormat.Png);
}
else if (format.Equals(ImageFormat.Bmp))
{
image.Save(ms, ImageFormat.Bmp);
}
else if (format.Equals(ImageFormat.Gif))
{
image.Save(ms, ImageFormat.Gif);
}
else if (format.Equals(ImageFormat.Icon))
{
image.Save(ms, ImageFormat.Icon);
}
else
{
EncoderParameters ep = new EncoderParameters(1);
ep.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)90);
ImageCodecInfo ici = ImageCodecInfo.GetImageEncoders().FirstOrDefault(a => a.MimeType == "image/jpeg");
image.Save(ms, ici, ep);
}
byte[] buffer = new byte[ms.Length];
//Image.Save()会改变MemoryStream的Position，需要重新Seek到Begin
ms.Seek(0, SeekOrigin.Begin);
ms.Read(buffer, 0, buffer.Length);
return(buffer);
}
}
/// <summary>
/// Gets the exif.
/// </summary>
/// <param name="bytes">The bytes.</param>
/// <param name="format">The format.</param>
/// <returns>System.Byte[][].</returns>
public byte[] SetOrientation(byte[] bytes, ImageFormat format)
{
if (format.Equals(ImageFormat.Jpeg))
{
var orientation = new ImageOrientation(bytes);
bytes = orientation.OrientImage();
}
return(bytes);
}
public static string ConvertToContentType(ImageFormat format)
{
string imageFormatString = ConvertToString(format);
if (format.Equals(ImageFormat.Icon))
{
imageFormatString = "vnd.microsoft.icon";
}
return(string.Concat("image/", imageFormatString));
}
public static void SaveBitmap(Bitmap bitmap, string fileName, ImageFormat imageFormat)
{
if (imageFormat.Equals(ImageFormat.Gif))
{
SaveGif(bitmap, fileName);
}
else if (imageFormat.Equals(ImageFormat.Tiff))
{
SaveTIFF(bitmap, fileName);
}
else if (imageFormat.Equals(ImageFormat.Jpeg))
{
SaveJpeg(bitmap, fileName, 80);
}
else
{
bitmap.Save(fileName, imageFormat);
}
}
/// <summary>
/// 图片转化为byte
/// </summary>
/// <param name="image"></param>
/// <returns></returns>
public static byte[] ImageToBytes(Image image)
{
ImageFormat format = image.RawFormat;
byte[] buffer = null;
try
{
using (MemoryStream ms = new MemoryStream())
{
if (format.Equals(ImageFormat.Jpeg))
{
Bitmap t = new Bitmap(image);
t.Save(ms, ImageFormat.Jpeg);
}
else if (format.Equals(ImageFormat.Png))
{
image.Save(ms, ImageFormat.Png);
}
else if (format.Equals(ImageFormat.Bmp))
{
image.Save(ms, ImageFormat.Bmp);
}
else if (format.Equals(ImageFormat.Gif))
{
image.Save(ms, ImageFormat.Gif);
}
else if (format.Equals(ImageFormat.Icon))
{
image.Save(ms, ImageFormat.Icon);
}
buffer = new byte[ms.Length];
//Image.Save()会改变MemoryStream的Position，需要重新Seek到Begin
ms.Seek(0, SeekOrigin.Begin);
ms.Read(buffer, 0, buffer.Length);
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
return(buffer);
}
public bool UpdateProductDefatulePictureSize(int pictureId)
{
var picture = GetPictureById(pictureId);
byte[] binary = LoadPictureBinary(picture);
MemoryStream ms1 = new MemoryStream(binary);
Image image = System.Drawing.Image.FromStream(ms1);
if (image.Width != 550 || image.Height == 360)
{
Bitmap newImg = new Bitmap(image, 550, 360);
ImageFormat format = image.RawFormat;
using (MemoryStream ms = new MemoryStream())
{
if (format.Equals(ImageFormat.Jpeg))
{
newImg.Save(ms, ImageFormat.Jpeg);
}
else if (format.Equals(ImageFormat.Png))
{
newImg.Save(ms, ImageFormat.Png);
}
else if (format.Equals(ImageFormat.Bmp))
{
newImg.Save(ms, ImageFormat.Bmp);
}
else if (format.Equals(ImageFormat.Gif))
{
newImg.Save(ms, ImageFormat.Gif);
}
else if (format.Equals(ImageFormat.Icon))
{
newImg.Save(ms, ImageFormat.Icon);
}
byte[] buffer = new byte[ms.Length];
ms.Seek(0, SeekOrigin.Begin);
ms.Read(buffer, 0, buffer.Length);
UpdatePicture(picture.Id, buffer, picture.MimeType, picture.SeoFilename, picture.AltAttribute, picture.TitleAttribute);
return(true);
}
}
return(false);
}
public Task Save(Bitmap Image, ImageFormat Format, string FileName, RecentViewModel Recents)
{
Image.WriteToClipboard(Format.Equals(ImageFormat.Png));
_systemTray.ShowMessage(LanguageManager.Instance.ImgSavedClipboard);
LanguageManager.Instance.LanguageChanged += L => RaisePropertyChanged(nameof(Display));
return(Task.CompletedTask);
}
public override void Save(Stream stream, ImageFormat format)
{
if (!format.Equals(ImageFormat.Jpeg))
{
throw new ArgumentOutOfRangeException("format", format, "Only JPEG format supported");
}
var wbm = (WriteableBitmap)this;
wbm.SaveJpeg(stream, _width, _height, 0, 100);
}
/// <summary>
/// Gets the correct mime-type for the given <see cref="T:System.Drawing.Imaging.ImageFormat" />.
/// </summary>
/// <param name="imageFormat">The <see cref="T:System.Drawing.Imaging.ImageFormat" />.</param>
/// <returns>The correct mime-type for the given <see cref="T:System.Drawing.Imaging.ImageFormat" />.</returns>
public static string GetMimeType(this ImageFormat imageFormat)
{
if (imageFormat.Equals(ImageFormat.Icon))
{
return("image/x-icon");
}
ImageCodecInfo[] codecs = ImageCodecInfo.GetImageEncoders();
return(codecs.First(codec => codec.FormatID == imageFormat.Guid).MimeType);
}
public static byte[] getQRcode(string qrcode)
{
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qrCodeEncoder.QRCodeScale = 4;
qrCodeEncoder.QRCodeVersion = 3;
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
System.Drawing.Image image = qrCodeEncoder.Encode(qrcode);
ImageFormat format = image.RawFormat;
using (MemoryStream ms = new MemoryStream())
{
if (format.Equals(ImageFormat.Jpeg))
{
image.Save(ms, ImageFormat.Jpeg);
}
else if (format.Equals(ImageFormat.Png))
{
image.Save(ms, ImageFormat.Png);
}
else if (format.Equals(ImageFormat.Bmp))
{
image.Save(ms, ImageFormat.Bmp);
}
else if (format.Equals(ImageFormat.Gif))
{
image.Save(ms, ImageFormat.Gif);
}
else if (format.Equals(ImageFormat.Icon))
{
image.Save(ms, ImageFormat.Icon);
}
else
{
image.Save(ms, ImageFormat.Png);
}
byte[] buffer = new byte[ms.Length];
ms.Seek(0, SeekOrigin.Begin);
ms.Read(buffer, 0, buffer.Length);
return(buffer);
}
}
public static byte[] getLogoFile(string LogoFile)
{
if (!File.Exists(LogoFile))
{
return(null);
}
using (System.Drawing.Image img = Bitmap.FromFile(LogoFile))
{
ImageFormat format = img.RawFormat;
using (MemoryStream ms = new MemoryStream())
{
if (format.Equals(ImageFormat.Jpeg))
{
img.Save(ms, ImageFormat.Jpeg);
}
else if (format.Equals(ImageFormat.Png))
{
img.Save(ms, ImageFormat.Png);
}
else if (format.Equals(ImageFormat.Bmp))
{
img.Save(ms, ImageFormat.Bmp);
}
else if (format.Equals(ImageFormat.Gif))
{
img.Save(ms, ImageFormat.Gif);
}
else if (format.Equals(ImageFormat.Icon))
{
img.Save(ms, ImageFormat.Icon);
}
else
{
img.Save(ms, ImageFormat.Png);
}
byte[] buffer = new byte[ms.Length];
ms.Seek(0, SeekOrigin.Begin);
ms.Read(buffer, 0, buffer.Length);
return(buffer);
}
}
}
/// <summary>
/// Convert Image to Byte[]
/// </summary>
/// <param name="image"></param>
/// <returns></returns>
public static byte[] ImageToBytes(Image image)
{
byte[] buffer = null;
try
{
//ImageFormat format = image.RawFormat;
ImageFormat format = ImageFormat.Bmp;
using (MemoryStream ms = new MemoryStream())
{
if (format.Equals(ImageFormat.Jpeg))
{
image.Save(ms, ImageFormat.Jpeg);
}
else if (format.Equals(ImageFormat.Png))
{
image.Save(ms, ImageFormat.Png);
}
else if (format.Equals(ImageFormat.Bmp))
{
image.Save(ms, ImageFormat.Bmp);
}
else if (format.Equals(ImageFormat.Gif))
{
image.Save(ms, ImageFormat.Gif);
}
else if (format.Equals(ImageFormat.Icon))
{
image.Save(ms, ImageFormat.Icon);
}
buffer = new byte[ms.Length];
//Image.Save()会改变MemoryStream的Position，需要重新Seek到Begin
ms.Seek(0, SeekOrigin.Begin);
ms.Read(buffer, 0, buffer.Length);
return(buffer);
}
}
catch (Exception ex)
{
LogHelper.AppLoger.Error(ex);
}
return(buffer);
}
public byte[] SaveBmp(Bitmap bmp, Image img)
{
MemoryStream ms = new MemoryStream();
ImageFormat imgFormat = img.RawFormat;
if (imgFormat.Equals(ImageFormat.Png) || imgFormat.Equals(ImageFormat.Gif))
{
bmp.Save(ms, ImageFormat.Png);
}
else
{
bmp.Save(ms, ImageFormat.Jpeg);
}
var result = ms.ToArray();
ms.Dispose();
return(result);
}
/// <summary>
/// Convert Image to Byte[]
/// </summary>
/// <param name="image"></param>
/// <returns></returns>
public static byte[] ImageToBytes(Bitmap image)
{
if (image == null)
{
return(new byte[0]);
}
ImageFormat format = image.RawFormat;
using (MemoryStream ms = new MemoryStream())
{
if (format.Equals(ImageFormat.Jpeg))
{
image.Save(ms, ImageFormat.Jpeg);
}
else if (format.Equals(ImageFormat.Png))
{
image.Save(ms, ImageFormat.Png);
}
else if (format.Equals(ImageFormat.Bmp))
{
image.Save(ms, ImageFormat.Bmp);
}
else if (format.Equals(ImageFormat.Gif))
{
image.Save(ms, ImageFormat.Gif);
}
else if (format.Equals(ImageFormat.Icon))
{
image.Save(ms, ImageFormat.Icon);
}
else
{
image.Save(ms, ImageFormat.Bmp);
}
byte[] buffer = new byte[ms.Length];
//Image.Save()会改变MemoryStream的Position，需要重新Seek到Begin
ms.Seek(0, SeekOrigin.Begin);
ms.Read(buffer, 0, buffer.Length);
return(buffer);
}
}
